Cetacean abundance and distribution in European Atlantic shelf waters to inform conservation and management

By P. Hammond, K. Macleod, Per Berggren, David L. Borchers, M. L. Burt, A. Cañadas, G. Desportes, G. Donovan, A. Gilles, D. Gillespie and 21 more. 2013

440 citations recorded by the source corpus.

The European Union (EU) Habitats Directive requires Member States to monitor and maintain at favourable conservation status those species identified to be in need of protection, including all cetaceans. In July 2005 we surveyed the entire EU Atlantic continental shelf to generate robust estimates of abundance for harbour porpoise and other cetacean species. The survey used line transect sampling methods and purpose built data collection equipment designed to minimise bias in estimates of abundance. Shipboard transects covered 19,725 km in sea conditions 6Beaufort 4 in an area of 1,005,743 km 2 . Aerial transects covered 15,802 km in good/moderate conditions (6Beaufort 3) in an area of 364,371 km 2 . Thirteen cetacean species were recorded; abundance was estimated for harbour porpoise (375,358; CV = 0.197), bottlenose dolphin (16,485; CV = 0.422), white-beaked dolphin (16,536; CV = 0.303), short-beaked common dolphin (56,221; CV = 0.234) and minke whale (18,958; CV = 0.347). Abundance in 2005 was similar to

Subfields: Ecology, Ecology, Evolution, Behavior and Systematics, Global and Planetary Change

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Citations in the corpus

Using mark–recapture distance sampling methods on line transect surveys (2014, background): “For example, 20% of harbour porpoise detections considered to be possible duplicates by Hammond et al. (2013) could not be classified by them as definitely being duplicates (see Table A2 in their supplementary material).”
Predicting cetacean abundance and distribution in a changing climate (2018, neutral): “…and ceta‐ ceans, and to evaluate risk from human activities (Benson et al., 2011; Forney, Becker, Foley, Barlow, & Oleson, 2015; Gilles et al., 2016; Hammond et al., 2013; Leathwick, Elith, Francis, Hastie, & Taylor, 2006; Louzao et al., 2006; Oppel et al., 2012; Redfern et al., 2013; Redfern,…”
Seasonal habitat-based density models for a marine top predator, the harbor porpoise, in a dynamic environment (2016, methodology): “Detailed descriptions of aerial survey field methods are provided elsewhere (Scheidat et al. 2008, Gilles et al. 2009, Hammond et al. 2013).”
Estimates of cetacean abundance in European Atlantic waters in summer 2016 from the SCANS-III aerial and shipboard surveys (2017, methodology): “In 2005, there were a number of sightings at the far western end of the Channel (Hammond et al. 2013) and in the SAMM survey in 2012 there were sightings in both the western and eastern parts, but not the central part (Laran et al.”